First post here so bear with me if I forget some rules.
Background: I'm a senior in college remotely interning part-time at Company A. The internship offer letter from Company A said that it's set to end in February but I do have the option to continue working through spring semester as well. During fall semester, my school had career fairs, in-person interview nights, and many events where other companies came in and talked to students at my school. I interviewed at several places (while also interning at A) and received an offer from Company B. I signed this offer since I enjoyed Company B's values and type of work much more than Company A. I know company A has already said they aim to turn interns into full-time employees after graduation; but, I was never interested in working for them full-time. I just want money during the school year + I don't see myself working here in the future.
Do I tell company A that I've made this choice or do I just keep quiet so that I can work through spring semester with no issues? I have a talk coming up soon with my boss about my future (everyone has a check-in, so not just me) so I'd appreciate any tips.